Karanović, Ljiljana

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orcid::0000-0001-9534-1315
  • Karanović, Ljiljana (9)
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Author's Bibliography

Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag

Nikolić, Irena; Marković, Smilja; Janković-Častvan, Ivona; Radmilović, Vuk V.; Karanović, Ljiljana; Babić, Biljana M.; Radmilovíć, Velimir R.

(Elsevier, 2016)

TY  - JOUR
AU  - Nikolić, Irena
AU  - Marković, Smilja
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Vuk V.
AU  - Karanović, Ljiljana
AU  - Babić, Biljana M.
AU  - Radmilovíć, Velimir R.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1073
AB  - Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0-40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N-(C)-A-S-H gel along with geopolymer-type gel (N-A-S-H). Thermal resistance of GB was considered from the standpoint of their mechanical and dimensional stability after heating in the temperature interval of 600800 C. The changes in mechanical and thermal properties of GB after heating are attributed to the changes in their structure. The results have shown that EAFS negatively affects the thermal resistance of GB above 600 degrees C due to the phase transition and morphological transformation of the amorphous gel phase. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Letters
T1  - Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag
VL  - 176
SP  - 301
EP  - 305
DO  - 10.1016/j.matlet.2016.04.121
ER  - 
@article{
author = "Nikolić, Irena and Marković, Smilja and Janković-Častvan, Ivona and Radmilović, Vuk V. and Karanović, Ljiljana and Babić, Biljana M. and Radmilovíć, Velimir R.",
year = "2016",
abstract = "Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0-40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N-(C)-A-S-H gel along with geopolymer-type gel (N-A-S-H). Thermal resistance of GB was considered from the standpoint of their mechanical and dimensional stability after heating in the temperature interval of 600800 C. The changes in mechanical and thermal properties of GB after heating are attributed to the changes in their structure. The results have shown that EAFS negatively affects the thermal resistance of GB above 600 degrees C due to the phase transition and morphological transformation of the amorphous gel phase. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag",
volume = "176",
pages = "301-305",
doi = "10.1016/j.matlet.2016.04.121"
}
Nikolić, I., Marković, S., Janković-Častvan, I., Radmilović, V. V., Karanović, L., Babić, B. M.,& Radmilovíć, V. R.. (2016). Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters
Elsevier., 176, 301-305.
https://doi.org/10.1016/j.matlet.2016.04.121
Nikolić I, Marković S, Janković-Častvan I, Radmilović VV, Karanović L, Babić BM, Radmilovíć VR. Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters. 2016;176:301-305.
doi:10.1016/j.matlet.2016.04.121 .
Nikolić, Irena, Marković, Smilja, Janković-Častvan, Ivona, Radmilović, Vuk V., Karanović, Ljiljana, Babić, Biljana M., Radmilovíć, Velimir R., "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag" in Materials Letters, 176 (2016):301-305,
https://doi.org/10.1016/j.matlet.2016.04.121 . .
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Structural and electrical properties of the 2Bi(2)O(3) center dot 3ZrO(2) system

Jovalekić, Čedomir; Zdujić, Miodrag; Poleti, Dejan; Karanović, Ljiljana; Mitrić, Miodrag

(2008)

TY  - JOUR
AU  - Jovalekić, Čedomir
AU  - Zdujić, Miodrag
AU  - Poleti, Dejan
AU  - Karanović, Ljiljana
AU  - Mitrić, Miodrag
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3465
AB  - Powder mixtures of alpha-Bi2O3 (bismite) and monoclinic m-ZrO2 (baddeleyite) in the molar ratio 2:3 were mechanochemically and thermally treated with the goal to examine the phases, which may appear during such procedures. The prepared samples were characterized by X-ray powder diffraction, differential scanning calorimetry (DSC), electrical measurements, as well as scanning electron microscopy (SEM) and transmission election microscopy (TEM). The mechanochemical reaction leads to the gradual formation of a nanocrystalline phase, which resembles delta-Bi2O3, a high-temperature Bi2O3 polymorph. Isothermal sintering in air at a temperature of 820 degrees C for 24 h followed by quenching to room temperature yielded a mixture of ZrO2-stabilized beta-Bi2O3 and m-ZrO2 phases, whereas in slowly cooled products, the complete separation of the initial alpha-Bi2O3 and m-ZrO2 constituents was observed. The dielectric permittivity of the sintered samples significantly depended on the temperature. The sintered and quenched samples exhibited a hysteresis dependence of the dielectric shift, showing that the ZrO2-doped beta-Bi2O3 phase possess ferroelectric properties, which were detected for the first time. This fact, together with Rietveld refinement of the beta-Bi2O3/m-ZrO2 mixture based on neutron powder diffraction data showed that ZrO2-doped beta-Bi2O3 has a non-centrosymmetric structure with P $(4) over bar $2(1)c as the true space group. The ZrO2 content in the doped beta-Bi2O3 and the crystal chemical reasons for the stabilization of the beta-Bi2O3 phase by the addition Of m-ZrO2 are discussed. (c) 2008 Elsevier Inc. All rights reserved.
T2  - Journal of Solid State Chemistry
T1  - Structural and electrical properties of the 2Bi(2)O(3) center dot 3ZrO(2) system
VL  - 181
IS  - 6
SP  - 1321
EP  - 1329
DO  - 10.1016/j.jssc.2008.02.038
ER  - 
@article{
author = "Jovalekić, Čedomir and Zdujić, Miodrag and Poleti, Dejan and Karanović, Ljiljana and Mitrić, Miodrag",
year = "2008",
abstract = "Powder mixtures of alpha-Bi2O3 (bismite) and monoclinic m-ZrO2 (baddeleyite) in the molar ratio 2:3 were mechanochemically and thermally treated with the goal to examine the phases, which may appear during such procedures. The prepared samples were characterized by X-ray powder diffraction, differential scanning calorimetry (DSC), electrical measurements, as well as scanning electron microscopy (SEM) and transmission election microscopy (TEM). The mechanochemical reaction leads to the gradual formation of a nanocrystalline phase, which resembles delta-Bi2O3, a high-temperature Bi2O3 polymorph. Isothermal sintering in air at a temperature of 820 degrees C for 24 h followed by quenching to room temperature yielded a mixture of ZrO2-stabilized beta-Bi2O3 and m-ZrO2 phases, whereas in slowly cooled products, the complete separation of the initial alpha-Bi2O3 and m-ZrO2 constituents was observed. The dielectric permittivity of the sintered samples significantly depended on the temperature. The sintered and quenched samples exhibited a hysteresis dependence of the dielectric shift, showing that the ZrO2-doped beta-Bi2O3 phase possess ferroelectric properties, which were detected for the first time. This fact, together with Rietveld refinement of the beta-Bi2O3/m-ZrO2 mixture based on neutron powder diffraction data showed that ZrO2-doped beta-Bi2O3 has a non-centrosymmetric structure with P $(4) over bar $2(1)c as the true space group. The ZrO2 content in the doped beta-Bi2O3 and the crystal chemical reasons for the stabilization of the beta-Bi2O3 phase by the addition Of m-ZrO2 are discussed. (c) 2008 Elsevier Inc. All rights reserved.",
journal = "Journal of Solid State Chemistry",
title = "Structural and electrical properties of the 2Bi(2)O(3) center dot 3ZrO(2) system",
volume = "181",
number = "6",
pages = "1321-1329",
doi = "10.1016/j.jssc.2008.02.038"
}
Jovalekić, Č., Zdujić, M., Poleti, D., Karanović, L.,& Mitrić, M.. (2008). Structural and electrical properties of the 2Bi(2)O(3) center dot 3ZrO(2) system. in Journal of Solid State Chemistry, 181(6), 1321-1329.
https://doi.org/10.1016/j.jssc.2008.02.038
Jovalekić Č, Zdujić M, Poleti D, Karanović L, Mitrić M. Structural and electrical properties of the 2Bi(2)O(3) center dot 3ZrO(2) system. in Journal of Solid State Chemistry. 2008;181(6):1321-1329.
doi:10.1016/j.jssc.2008.02.038 .
Jovalekić, Čedomir, Zdujić, Miodrag, Poleti, Dejan, Karanović, Ljiljana, Mitrić, Miodrag, "Structural and electrical properties of the 2Bi(2)O(3) center dot 3ZrO(2) system" in Journal of Solid State Chemistry, 181, no. 6 (2008):1321-1329,
https://doi.org/10.1016/j.jssc.2008.02.038 . .
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Rietveld refinement of crystal phases (Ca1-xLax)MnO3 with perovskite-type structure

Dukić, Jelena; Bošković, Snežana B.; Matović, Branko; Dimčić, Biljana; Karanović, Ljiljana

(2007)

TY  - CONF
AU  - Dukić, Jelena
AU  - Bošković, Snežana B.
AU  - Matović, Branko
AU  - Dimčić, Biljana
AU  - Karanović, Ljiljana
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6686
AB  - Two nanopowders with nominal compositions (Ca0.7La0.3)MnO3 (CLM) and (Ca0.7La0.3)(Mn0.8Ce0.2)O-3 (CLMC) were synthesized by a modified glycine/nitrate procedure. XRD analysis revealed binary phase mixture in both samples. The influence of La and Ce on unit cell parameters, atom positions, and average bond distances were analyzed. According to these results and refined occupation factors of La and Ca, as well as quantitative phase analysis it was found that the CLM sample consists of 85 mass.% of Ca0.62La0.38MnO3 and 15 mass.% of Ca0.99La0.01MnO3, while the CLMC sample consists of 70 mass.% of Ca0.58La0.42MnO3 and 30 mass.% of CeO2. Microstructure size-strain analysis was performed and the Rietveld refinement gave crystallites of about 100 angstrom. TEM images showed particle sizes of about 100-500 angstrom.
C3  - Materials Science Forum
T1  - Rietveld refinement of crystal phases (Ca1-xLax)MnO3 with perovskite-type structure
VL  - 555
SP  - 231
EP  - +
DO  - 10.4028/www.scientific.net/MSF.555.231
ER  - 
@conference{
author = "Dukić, Jelena and Bošković, Snežana B. and Matović, Branko and Dimčić, Biljana and Karanović, Ljiljana",
year = "2007",
abstract = "Two nanopowders with nominal compositions (Ca0.7La0.3)MnO3 (CLM) and (Ca0.7La0.3)(Mn0.8Ce0.2)O-3 (CLMC) were synthesized by a modified glycine/nitrate procedure. XRD analysis revealed binary phase mixture in both samples. The influence of La and Ce on unit cell parameters, atom positions, and average bond distances were analyzed. According to these results and refined occupation factors of La and Ca, as well as quantitative phase analysis it was found that the CLM sample consists of 85 mass.% of Ca0.62La0.38MnO3 and 15 mass.% of Ca0.99La0.01MnO3, while the CLMC sample consists of 70 mass.% of Ca0.58La0.42MnO3 and 30 mass.% of CeO2. Microstructure size-strain analysis was performed and the Rietveld refinement gave crystallites of about 100 angstrom. TEM images showed particle sizes of about 100-500 angstrom.",
journal = "Materials Science Forum",
title = "Rietveld refinement of crystal phases (Ca1-xLax)MnO3 with perovskite-type structure",
volume = "555",
pages = "231-+",
doi = "10.4028/www.scientific.net/MSF.555.231"
}
Dukić, J., Bošković, S. B., Matović, B., Dimčić, B.,& Karanović, L.. (2007). Rietveld refinement of crystal phases (Ca1-xLax)MnO3 with perovskite-type structure. in Materials Science Forum, 555, 231-+.
https://doi.org/10.4028/www.scientific.net/MSF.555.231
Dukić J, Bošković SB, Matović B, Dimčić B, Karanović L. Rietveld refinement of crystal phases (Ca1-xLax)MnO3 with perovskite-type structure. in Materials Science Forum. 2007;555:231-+.
doi:10.4028/www.scientific.net/MSF.555.231 .
Dukić, Jelena, Bošković, Snežana B., Matović, Branko, Dimčić, Biljana, Karanović, Ljiljana, "Rietveld refinement of crystal phases (Ca1-xLax)MnO3 with perovskite-type structure" in Materials Science Forum, 555 (2007):231-+,
https://doi.org/10.4028/www.scientific.net/MSF.555.231 . .

The change of crystal symmetry and cation ordering in Li-Mg ferrites

Antić, Bratislav; Rodić, Dubravko; Nikolić, Aleksandar S.; Kačarević-Popović, Zorica M.; Karanović, Ljiljana

(2002)

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rodić, Dubravko
AU  - Nikolić, Aleksandar S.
AU  - Kačarević-Popović, Zorica M.
AU  - Karanović, Ljiljana
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2507
AB  - In this work we present results of synthesis and structural investigation of the spinels with general formula LixMg1-2xFe2+xO4, where 0.00less than or equal toxless than or equal to0.50. Ultrafine powder of MgFe2O4 (x=0.00) was prepared by thermal decomposition of a mixture of complex compounds [Mg(AA)(2)] and [Fe(AA)(3)] at 500degreesC (AA=acetylacetone). The solid solutions of LixMg1-2xFe2+xO4 (0.10less than or equal toxless than or equal to0.45) were synthesized by conventional ceramic method. The samples with xgreater than or equal to0.40 belong to ordered spinels with primitive cubic cell, space group P4(3)32 and the samples with xgreater than or equal to0.35 are spinels with face-centered cubic cell, space group Fd-3m. Crystal structures of samples with x=0.00, 0.40 and 0.45 were refined by the Rietveld method using DBWS-9411 software package. In ordered spinels (x=0.40, 0.45) Li+ ions occupy both 4b (preferentially) and 12d octahedral sites. At tetrahedral 8c positions Li+ ions were not found (within the experimental error). Mg2+ ions occupy octahedral 12d and tetrahedral 8c sites and Fe3+ ions occupy all three different cationic sites. Cation ordering in 1:3 type ordered spinel (the occupancy ratio of the Wyckoffs positions 4b and 12d) of Li+ and Fe3(+) at octahedral sites is not complete as in Li0.5Fe2.5O4, In MgFe2O4 spinel, cation distribution in the tetrahedral sites was determined and given by occupation numbers N: N(Mg-8a(2+))=0.183(7) and N(Fe-8a(3+))=0.817(7). (C) 2002 Elsevier Science BY All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - The change of crystal symmetry and cation ordering in Li-Mg ferrites
VL  - 336
IS  - 1-2
SP  - 286
EP  - 291
DO  - 10.1016/S0925-8388(01)01885-0
ER  - 
@article{
author = "Antić, Bratislav and Rodić, Dubravko and Nikolić, Aleksandar S. and Kačarević-Popović, Zorica M. and Karanović, Ljiljana",
year = "2002",
abstract = "In this work we present results of synthesis and structural investigation of the spinels with general formula LixMg1-2xFe2+xO4, where 0.00less than or equal toxless than or equal to0.50. Ultrafine powder of MgFe2O4 (x=0.00) was prepared by thermal decomposition of a mixture of complex compounds [Mg(AA)(2)] and [Fe(AA)(3)] at 500degreesC (AA=acetylacetone). The solid solutions of LixMg1-2xFe2+xO4 (0.10less than or equal toxless than or equal to0.45) were synthesized by conventional ceramic method. The samples with xgreater than or equal to0.40 belong to ordered spinels with primitive cubic cell, space group P4(3)32 and the samples with xgreater than or equal to0.35 are spinels with face-centered cubic cell, space group Fd-3m. Crystal structures of samples with x=0.00, 0.40 and 0.45 were refined by the Rietveld method using DBWS-9411 software package. In ordered spinels (x=0.40, 0.45) Li+ ions occupy both 4b (preferentially) and 12d octahedral sites. At tetrahedral 8c positions Li+ ions were not found (within the experimental error). Mg2+ ions occupy octahedral 12d and tetrahedral 8c sites and Fe3+ ions occupy all three different cationic sites. Cation ordering in 1:3 type ordered spinel (the occupancy ratio of the Wyckoffs positions 4b and 12d) of Li+ and Fe3(+) at octahedral sites is not complete as in Li0.5Fe2.5O4, In MgFe2O4 spinel, cation distribution in the tetrahedral sites was determined and given by occupation numbers N: N(Mg-8a(2+))=0.183(7) and N(Fe-8a(3+))=0.817(7). (C) 2002 Elsevier Science BY All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "The change of crystal symmetry and cation ordering in Li-Mg ferrites",
volume = "336",
number = "1-2",
pages = "286-291",
doi = "10.1016/S0925-8388(01)01885-0"
}
Antić, B., Rodić, D., Nikolić, A. S., Kačarević-Popović, Z. M.,& Karanović, L.. (2002). The change of crystal symmetry and cation ordering in Li-Mg ferrites. in Journal of Alloys and Compounds, 336(1-2), 286-291.
https://doi.org/10.1016/S0925-8388(01)01885-0
Antić B, Rodić D, Nikolić AS, Kačarević-Popović ZM, Karanović L. The change of crystal symmetry and cation ordering in Li-Mg ferrites. in Journal of Alloys and Compounds. 2002;336(1-2):286-291.
doi:10.1016/S0925-8388(01)01885-0 .
Antić, Bratislav, Rodić, Dubravko, Nikolić, Aleksandar S., Kačarević-Popović, Zorica M., Karanović, Ljiljana, "The change of crystal symmetry and cation ordering in Li-Mg ferrites" in Journal of Alloys and Compounds, 336, no. 1-2 (2002):286-291,
https://doi.org/10.1016/S0925-8388(01)01885-0 . .
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Mixed ligand Co(II), Ni(II) and Cu(II) complexes containing terephthalato ligands. Crystal structures of diaqua(2,2 -dipyridylamine)(terephthalato)metal(II) trihydrates (metal = cobalt or nickel)

Rogan, Jelena R.; Poleti, Dejan; Karanović, Ljiljana; Bogdanović, Goran A.; Spasojević-de Bire, Anne; Petrović, Dragoslav M.

(2000)

TY  - JOUR
AU  - Rogan, Jelena R.
AU  - Poleti, Dejan
AU  - Karanović, Ljiljana
AU  - Bogdanović, Goran A.
AU  - Spasojević-de Bire, Anne
AU  - Petrović, Dragoslav M.
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2368
AB  - A series of nine ternary Co(II), Ni(II) and Cu(II) complexes with some aromatic diamines and dianion of terephthalic acid (tpht) have been synthesized and characterized by elemental analysis, magnetic susceptibility measurements, IR and diffuse-reflectance spectroscopy. All compounds were obtained as microcrystalline solids, stable in air and insoluble in common solvents. Two of them, [M(tpht)(dipya)(H2O)(2)]. 3H(2)O [M = Co(II), Ni(II); dipya = 2,2-dipyridylamine], were obtained as single crystals and their crystal structures have been determined by X-ray structure analysis. Both structures consist of discrete [M(tpht)(dipya)(H2O)(2)](2+) complex units with two H2O molecules in the trans position. Three additional H2O molecules together with coordinated H2O and O atoms from COO groups make a three-dimensional network of hydrogen bonds. Terephthalato ligands are coordinated by only one COO group, which acts as a chelating ligand. Central metal ions are in a distorted octahedral environment. Based on the above-mentioned analysis and known crystal structures, the possible structures and geometry of the complexes are discussed. All Co(II) and Ni(II) complexes are pseudooctahedral and mononuclear, with only one of the tpht COO groups coordinated in a chelate mode. Cu(II) complexes have probably distorted octahedral geometry with bridging role of tpht ions and monodentate or strongly asymmetric coordination of COO groups. (C) 2000 Elsevier Science Ltd. All rights reserved.
T2  - Polyhedron
T1  - Mixed ligand Co(II), Ni(II) and Cu(II) complexes containing terephthalato ligands. Crystal structures of diaqua(2,2 -dipyridylamine)(terephthalato)metal(II) trihydrates (metal = cobalt or nickel)
VL  - 19
IS  - 11
SP  - 1415
EP  - 1421
DO  - 10.1016/S0277-5387(00)00435-6
ER  - 
@article{
author = "Rogan, Jelena R. and Poleti, Dejan and Karanović, Ljiljana and Bogdanović, Goran A. and Spasojević-de Bire, Anne and Petrović, Dragoslav M.",
year = "2000",
abstract = "A series of nine ternary Co(II), Ni(II) and Cu(II) complexes with some aromatic diamines and dianion of terephthalic acid (tpht) have been synthesized and characterized by elemental analysis, magnetic susceptibility measurements, IR and diffuse-reflectance spectroscopy. All compounds were obtained as microcrystalline solids, stable in air and insoluble in common solvents. Two of them, [M(tpht)(dipya)(H2O)(2)]. 3H(2)O [M = Co(II), Ni(II); dipya = 2,2-dipyridylamine], were obtained as single crystals and their crystal structures have been determined by X-ray structure analysis. Both structures consist of discrete [M(tpht)(dipya)(H2O)(2)](2+) complex units with two H2O molecules in the trans position. Three additional H2O molecules together with coordinated H2O and O atoms from COO groups make a three-dimensional network of hydrogen bonds. Terephthalato ligands are coordinated by only one COO group, which acts as a chelating ligand. Central metal ions are in a distorted octahedral environment. Based on the above-mentioned analysis and known crystal structures, the possible structures and geometry of the complexes are discussed. All Co(II) and Ni(II) complexes are pseudooctahedral and mononuclear, with only one of the tpht COO groups coordinated in a chelate mode. Cu(II) complexes have probably distorted octahedral geometry with bridging role of tpht ions and monodentate or strongly asymmetric coordination of COO groups. (C) 2000 Elsevier Science Ltd. All rights reserved.",
journal = "Polyhedron",
title = "Mixed ligand Co(II), Ni(II) and Cu(II) complexes containing terephthalato ligands. Crystal structures of diaqua(2,2 -dipyridylamine)(terephthalato)metal(II) trihydrates (metal = cobalt or nickel)",
volume = "19",
number = "11",
pages = "1415-1421",
doi = "10.1016/S0277-5387(00)00435-6"
}
Rogan, J. R., Poleti, D., Karanović, L., Bogdanović, G. A., Spasojević-de Bire, A.,& Petrović, D. M.. (2000). Mixed ligand Co(II), Ni(II) and Cu(II) complexes containing terephthalato ligands. Crystal structures of diaqua(2,2 -dipyridylamine)(terephthalato)metal(II) trihydrates (metal = cobalt or nickel). in Polyhedron, 19(11), 1415-1421.
https://doi.org/10.1016/S0277-5387(00)00435-6
Rogan JR, Poleti D, Karanović L, Bogdanović GA, Spasojević-de Bire A, Petrović DM. Mixed ligand Co(II), Ni(II) and Cu(II) complexes containing terephthalato ligands. Crystal structures of diaqua(2,2 -dipyridylamine)(terephthalato)metal(II) trihydrates (metal = cobalt or nickel). in Polyhedron. 2000;19(11):1415-1421.
doi:10.1016/S0277-5387(00)00435-6 .
Rogan, Jelena R., Poleti, Dejan, Karanović, Ljiljana, Bogdanović, Goran A., Spasojević-de Bire, Anne, Petrović, Dragoslav M., "Mixed ligand Co(II), Ni(II) and Cu(II) complexes containing terephthalato ligands. Crystal structures of diaqua(2,2 -dipyridylamine)(terephthalato)metal(II) trihydrates (metal = cobalt or nickel)" in Polyhedron, 19, no. 11 (2000):1415-1421,
https://doi.org/10.1016/S0277-5387(00)00435-6 . .
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The ball milling induced transformation of alpha-Fe2O3 powder in air and oxygen atmosphere

Zdujić, Miodrag; Jovalekić, Čedomir; Karanović, Ljiljana; Mitrić, Miodrag

(1999)

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Jovalekić, Čedomir
AU  - Karanović, Ljiljana
AU  - Mitrić, Miodrag
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2232
AB  - The mechanochemical treatment of alpha-Fe2O3 powder was done concurrently in air and oxygen atmospheres using a conventional planetary ball mill. The influence of the duration of milling and of the balls-to-powder mass ratio on the transformation of alpha-Fe2O3 was investigated. Under appropriate milling conditions, alpha-Fe2O3, completely transforms to Fe3O4, and for prolonged milling to the Fe-1 _ O-x phase, either in air or oxygen atmosphere. Owing to the higher oxygen pressure, the start of the reaction in oxygen is delayed by similar to 1 h in comparison with the reaction in air. The reverse mechanochemical reaction Fe-1 . O-- GT Fe3O4-- GT , alpha-Fe2O3 takes place under proper oxygen atmosphere. The oxygen partial pressure is the critical parameter responsible for the mechanochemical reactions. The balls-to-powder mass ratio has a considerable influence on the kinetics of mechanochemical reactions. Below the threshold value the reaction does not proceed or proceeds very slowly. Plausibly, three phenomena govern mechanochemical reactions: (i) the generation of highly energetic and localized sites of a short lifetime at the moment of impact; (ii) the adsorption of oxygen at atomically dean surfaces created by particle fracture; and (iii) the change of activities of the constituent phases arising from a very distorted (nanocrystalline) structure. (C) 1999 Elsevier Science S.A. All rights reserved.
T2  - Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing
T1  - The ball milling induced transformation of alpha-Fe2O3 powder in air and oxygen atmosphere
VL  - 262
IS  - 1-2
SP  - 204
EP  - 213
DO  - 10.1016/S0921-5093(98)01009-0
ER  - 
@article{
author = "Zdujić, Miodrag and Jovalekić, Čedomir and Karanović, Ljiljana and Mitrić, Miodrag",
year = "1999",
abstract = "The mechanochemical treatment of alpha-Fe2O3 powder was done concurrently in air and oxygen atmospheres using a conventional planetary ball mill. The influence of the duration of milling and of the balls-to-powder mass ratio on the transformation of alpha-Fe2O3 was investigated. Under appropriate milling conditions, alpha-Fe2O3, completely transforms to Fe3O4, and for prolonged milling to the Fe-1 _ O-x phase, either in air or oxygen atmosphere. Owing to the higher oxygen pressure, the start of the reaction in oxygen is delayed by similar to 1 h in comparison with the reaction in air. The reverse mechanochemical reaction Fe-1 . O-- GT Fe3O4-- GT , alpha-Fe2O3 takes place under proper oxygen atmosphere. The oxygen partial pressure is the critical parameter responsible for the mechanochemical reactions. The balls-to-powder mass ratio has a considerable influence on the kinetics of mechanochemical reactions. Below the threshold value the reaction does not proceed or proceeds very slowly. Plausibly, three phenomena govern mechanochemical reactions: (i) the generation of highly energetic and localized sites of a short lifetime at the moment of impact; (ii) the adsorption of oxygen at atomically dean surfaces created by particle fracture; and (iii) the change of activities of the constituent phases arising from a very distorted (nanocrystalline) structure. (C) 1999 Elsevier Science S.A. All rights reserved.",
journal = "Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing",
title = "The ball milling induced transformation of alpha-Fe2O3 powder in air and oxygen atmosphere",
volume = "262",
number = "1-2",
pages = "204-213",
doi = "10.1016/S0921-5093(98)01009-0"
}
Zdujić, M., Jovalekić, Č., Karanović, L.,& Mitrić, M.. (1999). The ball milling induced transformation of alpha-Fe2O3 powder in air and oxygen atmosphere. in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 262(1-2), 204-213.
https://doi.org/10.1016/S0921-5093(98)01009-0
Zdujić M, Jovalekić Č, Karanović L, Mitrić M. The ball milling induced transformation of alpha-Fe2O3 powder in air and oxygen atmosphere. in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing. 1999;262(1-2):204-213.
doi:10.1016/S0921-5093(98)01009-0 .
Zdujić, Miodrag, Jovalekić, Čedomir, Karanović, Ljiljana, Mitrić, Miodrag, "The ball milling induced transformation of alpha-Fe2O3 powder in air and oxygen atmosphere" in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 262, no. 1-2 (1999):204-213,
https://doi.org/10.1016/S0921-5093(98)01009-0 . .
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69

Mechanochemical treatment of alpha-Fe2O3 powder in air atmosphere

Zdujić, Miodrag; Jovalekić, Čedomir; Karanović, Ljiljana; Mitrić, Miodrag; Poleti, Dejan; Skala, Dejan

(1998)

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Jovalekić, Čedomir
AU  - Karanović, Ljiljana
AU  - Mitrić, Miodrag
AU  - Poleti, Dejan
AU  - Skala, Dejan
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2143
AB  - Powder of alpha-Fe2O3 was mechanochemically treated in a planetary ball mill in an air atmosphere. Structural changes were followed by X-ray diffraction analysis, magnetization measurements and differential scanning calorimetry after various milling times. It was found that complete transformation of alpha-Fe2O3 to Fe3O4 is possible during milling in an air atmosphere under appropriate milling conditions. Presumably, the decrease in the oxygen partial pressure during milling has a critical influence on promoting the dissociation of alpha-Fe2O3. Before nucleation of the Fe3O4 phase, the crystallites of the alpha-Fe2O3 phase are reduced to a minimal size accompanied by the introduction of atomic-level strain. Local modeling of a collision event, coupled with a classical thermodynamic assessment of the Fe2O3-Fe3O4 system, were used to rationalize the experimental results. It is proposed that the mechanochemical reactions proceed at the moment of impact by a process of energization and freezing of highly localized sites of a short lifetime. Excitation on a time scale of similar to 10(-5) s corresponds to a temperature rise of the order of (1-2) x 10(3) K. Decay of the excited state occurs rapidly at a mean cooling rate higher than 10(6) K s(-1). (C) 1998 Elsevier Science S.A. All rights reserved.
T2  - Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing
T1  - Mechanochemical treatment of alpha-Fe2O3 powder in air atmosphere
VL  - 245
IS  - 1
SP  - 109
EP  - 117
DO  - 10.1016/S0921-5093(97)00715-6
ER  - 
@article{
author = "Zdujić, Miodrag and Jovalekić, Čedomir and Karanović, Ljiljana and Mitrić, Miodrag and Poleti, Dejan and Skala, Dejan",
year = "1998",
abstract = "Powder of alpha-Fe2O3 was mechanochemically treated in a planetary ball mill in an air atmosphere. Structural changes were followed by X-ray diffraction analysis, magnetization measurements and differential scanning calorimetry after various milling times. It was found that complete transformation of alpha-Fe2O3 to Fe3O4 is possible during milling in an air atmosphere under appropriate milling conditions. Presumably, the decrease in the oxygen partial pressure during milling has a critical influence on promoting the dissociation of alpha-Fe2O3. Before nucleation of the Fe3O4 phase, the crystallites of the alpha-Fe2O3 phase are reduced to a minimal size accompanied by the introduction of atomic-level strain. Local modeling of a collision event, coupled with a classical thermodynamic assessment of the Fe2O3-Fe3O4 system, were used to rationalize the experimental results. It is proposed that the mechanochemical reactions proceed at the moment of impact by a process of energization and freezing of highly localized sites of a short lifetime. Excitation on a time scale of similar to 10(-5) s corresponds to a temperature rise of the order of (1-2) x 10(3) K. Decay of the excited state occurs rapidly at a mean cooling rate higher than 10(6) K s(-1). (C) 1998 Elsevier Science S.A. All rights reserved.",
journal = "Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing",
title = "Mechanochemical treatment of alpha-Fe2O3 powder in air atmosphere",
volume = "245",
number = "1",
pages = "109-117",
doi = "10.1016/S0921-5093(97)00715-6"
}
Zdujić, M., Jovalekić, Č., Karanović, L., Mitrić, M., Poleti, D.,& Skala, D.. (1998). Mechanochemical treatment of alpha-Fe2O3 powder in air atmosphere. in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 245(1), 109-117.
https://doi.org/10.1016/S0921-5093(97)00715-6
Zdujić M, Jovalekić Č, Karanović L, Mitrić M, Poleti D, Skala D. Mechanochemical treatment of alpha-Fe2O3 powder in air atmosphere. in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing. 1998;245(1):109-117.
doi:10.1016/S0921-5093(97)00715-6 .
Zdujić, Miodrag, Jovalekić, Čedomir, Karanović, Ljiljana, Mitrić, Miodrag, Poleti, Dejan, Skala, Dejan, "Mechanochemical treatment of alpha-Fe2O3 powder in air atmosphere" in Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 245, no. 1 (1998):109-117,
https://doi.org/10.1016/S0921-5093(97)00715-6 . .
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78

Synthesis and deposition of ZnO based particles by aerosol spray pyrolysis

Milošević, Olivera; Gagic, V; Vodnik, J; Mitrovic, A; Karanović, Ljiljana; Stojanovic, B; Živković, L.

(1997)

TY  - JOUR
AU  - Milošević, Olivera
AU  - Gagic, V
AU  - Vodnik, J
AU  - Mitrovic, A
AU  - Karanović, Ljiljana
AU  - Stojanovic, B
AU  - Živković, L.
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7231
AB  - Spray pyrolysis was used for the deposition of well defined submicronic to nanosize particles based on ZnO. The influence of the temperature in the range from 345 to 1165 K, solution concentration (0.004 and 1.5 mol dm(-3)) and the residence time on the particle morphology is discussed. X-ray diffraction, differential scanning calorimetry and scanning electron microscopy were used in particle characterization. With the presumption that certain particle morphology is formed during the evaporation/drying stage of spray pyrolysis, the corresponding mathematical model for droplets evaporation is developed and correlated with the empirical results. (C) 1997 Elsevier Science S.A.
T2  - Thin Solid Films
T1  - Synthesis and deposition of ZnO based particles by aerosol spray pyrolysis
VL  - 296
IS  - 1-2
SP  - 44
EP  - 48
DO  - 10.1016/S0040-6090(96)09358-3
ER  - 
@article{
author = "Milošević, Olivera and Gagic, V and Vodnik, J and Mitrovic, A and Karanović, Ljiljana and Stojanovic, B and Živković, L.",
year = "1997",
abstract = "Spray pyrolysis was used for the deposition of well defined submicronic to nanosize particles based on ZnO. The influence of the temperature in the range from 345 to 1165 K, solution concentration (0.004 and 1.5 mol dm(-3)) and the residence time on the particle morphology is discussed. X-ray diffraction, differential scanning calorimetry and scanning electron microscopy were used in particle characterization. With the presumption that certain particle morphology is formed during the evaporation/drying stage of spray pyrolysis, the corresponding mathematical model for droplets evaporation is developed and correlated with the empirical results. (C) 1997 Elsevier Science S.A.",
journal = "Thin Solid Films",
title = "Synthesis and deposition of ZnO based particles by aerosol spray pyrolysis",
volume = "296",
number = "1-2",
pages = "44-48",
doi = "10.1016/S0040-6090(96)09358-3"
}
Milošević, O., Gagic, V., Vodnik, J., Mitrovic, A., Karanović, L., Stojanovic, B.,& Živković, L.. (1997). Synthesis and deposition of ZnO based particles by aerosol spray pyrolysis. in Thin Solid Films, 296(1-2), 44-48.
https://doi.org/10.1016/S0040-6090(96)09358-3
Milošević O, Gagic V, Vodnik J, Mitrovic A, Karanović L, Stojanovic B, Živković L. Synthesis and deposition of ZnO based particles by aerosol spray pyrolysis. in Thin Solid Films. 1997;296(1-2):44-48.
doi:10.1016/S0040-6090(96)09358-3 .
Milošević, Olivera, Gagic, V, Vodnik, J, Mitrovic, A, Karanović, Ljiljana, Stojanovic, B, Živković, L., "Synthesis and deposition of ZnO based particles by aerosol spray pyrolysis" in Thin Solid Films, 296, no. 1-2 (1997):44-48,
https://doi.org/10.1016/S0040-6090(96)09358-3 . .
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Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels

Ilić, A.; Antić, Bratislav; Poleti, Dejan; Rodić, Dubravko; Petrović-Prelević, Irena; Karanović, Ljiljana

(1996)

TY  - JOUR
AU  - Ilić, A.
AU  - Antić, Bratislav
AU  - Poleti, Dejan
AU  - Rodić, Dubravko
AU  - Petrović-Prelević, Irena
AU  - Karanović, Ljiljana
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1973
AB  - The series of spinels Zn2.33-xCoxSb0.67O4 (0.23 less than or equal to x less than or equal to 2.33) was prepared by ceramic technology. The crystal structures were refined from the x-ray diffraction data using the Rietveld profile method. The high-temperature magnetic susceptibility was measured by the Faraday method in the temperature range 290-600 K and the data were fitted to the Curie-Weiss law. The cation distribution in these diluted magnetics is obtained from x-ray diffraction and high-temperature magnetic susceptibility measurements. It was found that, for x less than or equal to 0.93 Co2+, ions occupy exclusively the octahedral position in the spinel type of structure. In the low-concentration region a strong clustering of magnetic ions is observed. In the range 1.33 less than or equal to x less than or equal to 2.33, Co2+ ions are distributed in both tetrahedral and octahedral cationic sites. The Curie-Weiss paramagnetic temperature Theta is negative in the whole range of concentrations, as the consequence of a predominant antiferromagnetic interaction. The appearance of the Co2+ ions in tetrahedral sites (around x = 1.33) leads to a drop in the absolute Theta-value. The effective magnetic moments of Co2+ ions are about 4.60(mu B) for x less than or equal to 1.33 and depend on the Co2+ concentration for x GT 1.33.
T2  - Journal of Physics: Condensed Matter
T1  - Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels
VL  - 8
IS  - 14
SP  - 2317
EP  - 2325
DO  - 10.1088/0953-8984/8/14/008
ER  - 
@article{
author = "Ilić, A. and Antić, Bratislav and Poleti, Dejan and Rodić, Dubravko and Petrović-Prelević, Irena and Karanović, Ljiljana",
year = "1996",
abstract = "The series of spinels Zn2.33-xCoxSb0.67O4 (0.23 less than or equal to x less than or equal to 2.33) was prepared by ceramic technology. The crystal structures were refined from the x-ray diffraction data using the Rietveld profile method. The high-temperature magnetic susceptibility was measured by the Faraday method in the temperature range 290-600 K and the data were fitted to the Curie-Weiss law. The cation distribution in these diluted magnetics is obtained from x-ray diffraction and high-temperature magnetic susceptibility measurements. It was found that, for x less than or equal to 0.93 Co2+, ions occupy exclusively the octahedral position in the spinel type of structure. In the low-concentration region a strong clustering of magnetic ions is observed. In the range 1.33 less than or equal to x less than or equal to 2.33, Co2+ ions are distributed in both tetrahedral and octahedral cationic sites. The Curie-Weiss paramagnetic temperature Theta is negative in the whole range of concentrations, as the consequence of a predominant antiferromagnetic interaction. The appearance of the Co2+ ions in tetrahedral sites (around x = 1.33) leads to a drop in the absolute Theta-value. The effective magnetic moments of Co2+ ions are about 4.60(mu B) for x less than or equal to 1.33 and depend on the Co2+ concentration for x GT 1.33.",
journal = "Journal of Physics: Condensed Matter",
title = "Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels",
volume = "8",
number = "14",
pages = "2317-2325",
doi = "10.1088/0953-8984/8/14/008"
}
Ilić, A., Antić, B., Poleti, D., Rodić, D., Petrović-Prelević, I.,& Karanović, L.. (1996). Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels. in Journal of Physics: Condensed Matter, 8(14), 2317-2325.
https://doi.org/10.1088/0953-8984/8/14/008
Ilić A, Antić B, Poleti D, Rodić D, Petrović-Prelević I, Karanović L. Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels. in Journal of Physics: Condensed Matter. 1996;8(14):2317-2325.
doi:10.1088/0953-8984/8/14/008 .
Ilić, A., Antić, Bratislav, Poleti, Dejan, Rodić, Dubravko, Petrović-Prelević, Irena, Karanović, Ljiljana, "Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels" in Journal of Physics: Condensed Matter, 8, no. 14 (1996):2317-2325,
https://doi.org/10.1088/0953-8984/8/14/008 . .
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